import { ActivityData } from './types';
export declare class ActivityGrid extends HTMLElement {
    private readonly gridRenderer;
    set data(value: ActivityData[]);
    get data(): ActivityData[];
    private _data;
    set colors(value: string[]);
    get colors(): string[];
    private _colors;
    set colorTheme(value: string);
    get colorTheme(): string;
    private _colorTheme;
    set darkMode(value: boolean);
    get darkMode(): boolean;
    private _darkMode;
    set emptyColor(value: string | null);
    get emptyColor(): string;
    private _emptyColor;
    set skipWeekends(value: boolean);
    get skipWeekends(): boolean;
    private _skipWeekends;
    set startWeekOnMonday(value: boolean);
    get startWeekOnMonday(): boolean;
    private _startWeekOnMonday;
    set endDate(value: string);
    get endDate(): string;
    private _endDate;
    set startDate(value: string);
    get startDate(): string;
    private _startDate;
    private cells;
    constructor();
    connectedCallback(): void;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    static get observedAttributes(): string[];
    private createDefaultStartDate;
    private generateGridCells;
    private validateActivityData;
    private validateColor;
    private calculateLevel;
    private updateGrid;
    private attachEventListeners;
}